Centrifugal sprinkler



Sept. 4, 1928.

J. 'PERDUE CENTR FUGAL SPRINKLER Fned oct, s, 19`25 Jna l.' falda@ f/fs.

Patented Sept. 4, 1928.

UNITED STATES PATENT OFFICE.

JOI-IN C. PERDUE, 0F METHUEN, MASSACHUSETTS, ASSIGNOR TO MANUFACTURERSMACHINE COMPANY, OF NORTH ANDOVER, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

CENTRIFUGAL SPRINKLER.

Application led October The present invention relates to means forscattering Water, or other liquid; particularly for the purpose ofatomizing such liquid by throwing it forcibly against adjacent inipactor impingement surfaces. Such means or devices are rotatably mounted soas to be partially submerged in a body of the Water, or other liquid tobe atoinized, and operate by picking up the liquid in the course oftheir rotation, and throwing the liquid off by centrifugal force.Devices in the nature of rotary brushes, consisting of a central coreand bristles or Wire on their latei'al surfaces have heretofore beenused for this purpose, and called brushes, although their functions areunlike the ordinary uses to which brushes are put. Therefore, and alsoin order to give a coincise distinguishing term to the device in whichmy invention is embodied, I will, in the following specification,generally refer to it by the terni brush, although in the constructionof its Water-carrying elements it is radically unlike the brushesheretofore used for sprinkling and atomizing purposes, or otherpurposes. I will also generally refer to the liquid which is acted uponby the use of my brush as water. because that the liquid most commonlyused, but in so doing I have not intended to indicate any limitation inthe use to -which my invention may be put, or in the srope oi" theprotection which I claim for it.

My object has been to provide a brush (ta-- pable of revolving, inpartial submeigence in water oi other liquid, With a minimum ofdisturbance or production of Wave action in the liquid, and capable oflifting from the body of Water small masses in a finer state of divisionand a Wider separation from one another than is obtained with thebrushes heretofore used in sprinkling and atoiiiizing apparatus. Thenovel characteristics by which these objects are accomplished, and thecombination of a brush having such characteristics with the cooperatingparts of a complete atoinizing apparatus, constitute the invention whichI claim and shall now describe.

3, 1925. Serial No. 60,191.

In the drawings,-

Fig. l is a .cross section illustrating an atoinizer containing myimproved brush as the ivater throwing element thereof;

C Ilig. 2 is a longitudinal section of the atomizeilshowing my brush inlside elevation;

Iig. 3 is a fragmentary detail View on a larger scale.

Like reference characters designate the saine parts in all the figures.

rllie complete atoinizer comprises a box or casing e having a bottom,ends, sides, and other impact surfaces, adapted to contain a body ofwater, or other liquid` to be atomized, and a brush or sprinkler b. Inthe upper part ot the casing are plates or covers c, d, which togetheroverlie the entire space above the 1rush lbetvz'eeii the side Walls ofthe casing.

1ne oi sucii piates, as d, is preferably mounted 1with provision forangular adjustment, and crosses the adjacent edge of the other plate,adjustment enabling an emission slot f of greater or less Width to beopened between Lne two plates. For the purpose of such adj ustn'ient`the plate Z niav be secured on a shaft 1 havingl bearings in the endWalls ,f the casing and protruding, at one end at least, beyond theadjacent end Wall. The protruding end of the aba lt niav be equippedwith a v'firni gear 2 meshing \vith a wei-n1 3 onI a siiait Alf, whichis suj'iported in bearings itably mounted ou the casing, and on Wliih isuitable handle This raiiords a selflocaing inrans which is alwaysinstantly operative to adjust the plate as desired. The atouiizerstructure as thus far described. however, is not my invention. and isiiliisI trated here to show the environment in which inf; novel brushmay be iisefullv enuiloved.

lily invention resides in the iioi'elkcoiistruction of the brush Z). Inits embodiment here illufatrated` such brush comprises a cylindricalcore mounted on a shaft g. Stich core may be solid or hollow, and ifhollow, it is preferably niade of a tube With heads attached to itsends.

On the surface of said core are mounted water lifting and throwingelements L. These elements are of a foraminous or reticulated structure,being most conveniently made of wire cloth, of which the gauge of theWires and width of the meshes between them are preferably similar tothose of fiy screening, ut may be either finer or coarser. Such wirecloth is bent or folded so as to form ridges and laterally projectingwebs adjacent to the bases of such ridges. Conveniently and preferably,each ridge is made of a single strip of the Wire cloth, bent as abovedescribed, and as clearly shown in the drawings. A number of the ridges,including all of them, may be made my appropriately bending and forminga single piece of the wire cloth land placing it on the core so as moreor less completely to surround the core.

Preferably, the wire cloth ridges are arranged longitudinally of thecore and parallel to its axis, and secured by means of holding strips orbattens k, which are laid upon the before named base webs and aresecured to the core by screws placed at suitable intervals, or by othermeans. The wire cloth ridges may extend the full length of the core orthroughout any desired fraction thereof. It is not necessary that theybe parallel to the axis, for they might be applied with a helical orskewed arrangement, but the parallel arrangement is the simplest andbest.

When the brush of this invention is used for sprinkling water, it ispreferably made of materials which are not corroded or otherwise injuredby water. For instance, all parts of the brush, including the Wire clothridges, may be made of brass; or different materials may be used fordifferent parts.

When the atomizer is used for its intended purpose, the casing is filledwith water up to a height sufiicient to submerge the lower part of thebrush, but preferably only a minor part, or none at all, of the core.Possibly indeed, the water level may be high enough only to receive theridges when in their lowermost position, and not up to the holdingbattens.

Brushes made as herein disclosed have the advantage that when rotatingat high speed, the wires forming the ridges cut through the Water with aminimum of disturbance and without causing wave action or throwing thewater out of place. IV hen the wire cloth ridges leave the water, theypick it up in small drops, which lodge and remain on the intersectionsofthe wires; all the water which cannot find such lodgement drainingaway through the meshes of the fabric. Thus when the water is firstpicked up, it is initially subdivided into small particles and theseparticles are widely separated from one another.

It is to be understood that the brush is r0- tated at high speed by anysuitable means applied to its shaft outside or inside of the atomizerCasing. Hence the bits of water lifted by the brush are thrown oil' bycentrifugal force. These particles, striking forcibly against theimpingement surfaces formed by the adjacent walls of the casing and theplates c, d, are shattered into a fine mist or fog, which is circulatedand carried out of the casing by the air currents induced by the rotation of the brush.

In thus particularly describing the construction of my improved brush,and particularly the wire cloth lifting elements thereof, I have notintended to indicate a restriction to such specific construction of theprotection which I claim, but I include within my protection otherstructures and devices capable of obtaining substantially the sameeffects in an equivalent way.

IVhat I claim and desire to secure by Letters Patent'is:

l. In an atomizer having impact surfaces, a centrifugal distributerrevolubly mounted in said atomizer and comprising a central core andforaniinous Water lifters secured to said core, extending longitudinallythereof and projecting radially therefrom.

2. In an atomizer adapted to contain a body of water and havingenclosing impact surfaces, a centrifugal. distributer mounted in saidatomizer to rotate about a substantially horizontal axis and havingperipheral elements adapted to dip into such body of water, saidelements being constructedwith scattered lifting portions andintermediate open spaces.

3. In an atomizer adapted to contain a body of water and havingenclosing impact surfaces, a centrifugal distributer mounted in saidatomizer to rotate about a substantially horizontal axis and havingperipheral elements adapted to dip into such body of water, saidelements being of reticulated construction having scattered collectionpoints and intermediate open spaces.

Ale. In anatomizer adapted to contain a body of water and havingenclosing impact surfaces, a centrifugal distributermounted in saidatomizer to rotate about a substantially horizontal axis and havingperipheral elements adapted to dip into such body of water, saidelements being composed of Wire cloth projecting in generally radialdirections from the axis of the distributer.

In an atomizer adapted to contain a body of water and having enclosingimpact surfaces, a centrifugal distributer mounted in said atomizer torotate about a substantially horizontal axis and having peripheralelements adapted to dip into such body of water, said elements beingcomposed of strips of wire cloth folded to form ridges and applied tosaid distributer in such manner that said ridges project radiallytherefrom.

6. A water distributer comprising a core adapted to rotate abouta,substantially;hori- Zontal axis over a body of water, andwirc clothapplied to said core in such an arrangement and form as to provide ribsprojecting from the surface of the core in a generally radial directionwith reference to the axis of 5 the Core.

7. A Water distributer comprising a core adapted to rotate about asubstantially horizontal axis over a body of Water, Wire cloth folded toform ridges and flanges extending laterally from the bases of saidridges, applied to the core With Said flanges against the surface of thecore, and battens overlying the flanges and secured to the core.

In testimony whereof I have affixed my signature.

JOHN C. PERDUE.

